package com.tzt.mabatis;

import java.util.Properties;

import javax.annotation.Resource;
import javax.sql.DataSource;

import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io

        .support.PathMatchingResourcePatternResolver;
import org.springframework.core.io

        .support.ResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.TransactionManagementConfigurer;

import com.github.pagehelper.PageHelper;

@Configuration
@EnableTransactionManagement
public class MyBatisConfig implements TransactionManagementConfigurer
{

    @Resource
    private DataSource dataSource;

    @Bean(name = "sqlSessionFactory")
    public SqlSessionFactory sqlSessionFactoryBean()
    {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setTypeAliasesPackage("com.training");

        // 分页插件
        PageHelper pageHelper = new PageHelper();
        Properties properties = new Properties();
        properties.setProperty("reasonable", "true");
        properties.setProperty("supportMethodsArguments", "true");
        properties.setProperty("returnPageInfo", "check");
        properties.setProperty("params", "count=countSql");
        // 禁用合理化时,否则页码没有的时候，还是会返回最后一页数据
        properties.setProperty("reasonable", "false");
        pageHelper.setProperties(properties);

        // 添加插件
        bean.setPlugins(new Interceptor[]
        { pageHelper });

        // 添加XML目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        try
        {
            bean.setMapperLocations(resolver.getResources("classpath:**/mapper/*.xml"));
            return bean.getObject();
        }
        catch (Exception e)
        {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

    @Bean
    public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory)
    {
        return new SqlSessionTemplate(sqlSessionFactory);
    }

    @Bean
    @Override
    public PlatformTransactionManager annotationDrivenTransactionManager()
    {
        return new DataSourceTransactionManager(dataSource);
    }
}
